WO2025065553A1 - Method for sending and receiving dsr, terminal, network device, system, and medium - Google Patents

Abstract

The present disclosure relates to a method for sending and receiving a DSR, a terminal, a network device, a system, and a medium. The method comprises: a terminal sends a DSR to a network device, the DSR comprising an index, the index having a mapping relationship with a DSR data volume, and the DSR data volume comprising: a data volume corresponding to a data packet to be discarded after the remaining time that is less than a threshold. In the method of the present disclosure, a terminal sends a DSR to a network device to accurately report DSR data volumes corresponding to different indexes, so that the network device can accurately know, on the basis of the DSR, the data volume of a data packet to be discarded after the remaining time that is less than a threshold, and thus the network device can perform scheduling on the basis of the data volume. In the reporting, the terminal does not need to report excessive data volumes, so that resources of the network device during scheduling can be conserved.

Description

Method, terminal, network device, system and medium for sending and receiving DSR Technical Field

The present disclosure relates to the field of communication technology, and in particular to a method, terminal, network device, system and medium for sending and receiving DSR.

Background Art

The packet discard mechanism is introduced in the Packet Data Convergence Protocol (PDCP) layer. When the timer corresponding to the relevant data expires, the PDCP entity can discard the expired data packet. In addition, when some data packets are not scheduled for a long time, the terminal can send a Delay Status Report (DSR) to the network device to notify the network device.

Summary of the invention

In the related method, the Buffer Status Report (BSR) is used to report the DSR data volume, but the accuracy is poor. In the DSR report, there is still a lack of a method for reporting the DSR data volume with high accuracy.

The present disclosure relates to a method, terminal, network device, system and medium for sending and receiving DSR.

In a first aspect, an embodiment of the present disclosure provides a method for sending a delay status report DSR, the method comprising:

The terminal sends a DSR to the network device, wherein the DSR includes an index, wherein the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: a data volume corresponding to a data packet whose remaining time from packet discard is less than a threshold.

In a second aspect, an embodiment of the present disclosure provides a method for receiving a DSR, the method comprising:

The network device receives a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold.

In a third aspect, an embodiment of the present disclosure provides a terminal, including:

The transceiver module is used to send a DSR to a network device. The DSR includes an index. The index has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold.

In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

Memory;

one or more processors;

and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the first aspect is implemented.

In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

Memory;

one or more processors;

and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the second aspect is implemented.

In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

The terminal is configured to implement the communication processing method described in the first aspect;

The network device is configured to implement the method described in the second aspect.

In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for describing the embodiments are introduced below. The following drawings are only some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

FIG. 1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

FIG1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure;

FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

FIG2b is a schematic diagram of the format of DSR corresponding signaling provided according to an embodiment of the present disclosure;

3a to 3c are schematic flow diagrams of a method performed by a terminal according to an embodiment of the present disclosure;

4a to 4c are flowchart diagrams of a method performed by a network device according to an embodiment of the present disclosure;

FIG5a is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure;

FIG5b is a schematic diagram showing the structure of a network device according to an embodiment of the present disclosure;

FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The present disclosure relates to a method, terminal, network device, system and medium for sending and receiving DSR.

In a first aspect, an embodiment of the present disclosure provides a method for sending a delay status report DSR, the method comprising:

The terminal sends a DSR to the network device, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, wherein the DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discarding is less than a threshold.

In the above embodiment, the terminal accurately reports the DSR data volume corresponding to different indexes by sending DSR to the network device, so that the network device can accurately know the data volume whose remaining time before packet discard is less than the threshold according to DSR, so that the network device can schedule based on this data volume. In this report, the terminal does not need to report too much data volume, which can save the resources of the network device during scheduling.

In combination with the embodiments of the first aspect, in some embodiments, the DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum value and the maximum value, and the first algorithm.

In the above embodiment, a method for generating a DSR data amount series in a mapping relationship is defined. The generation method can be a method for a protocol to generate a mapping relationship, a method for a network device to generate a mapping relationship, or a method for a terminal to generate a mapping relationship, thereby improving the flexibility of obtaining the DSR data amount.

In combination with the embodiments of the first aspect, in some embodiments, the number N is determined based on the number of bits used to indicate the amount of data in the DSR.

In the above embodiment, different numbers of bits correspond to different Ns, so that the corresponding data amounts can be determined.

In combination with the embodiments of the first aspect, in some embodiments, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In the above embodiment, the DSR data volume is used to indicate the data volume whose remaining time before packet discarding is less than a threshold, so the mapping relationship reported by the terminal does not need to indicate the data volume as 0, so as to reduce unnecessary reporting and save DSR resources.

In conjunction with the embodiments of the first aspect, in some embodiments, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the above embodiment, a method of using an exponential algorithm to determine a data amount series is illustrated. Based on this method, the data amounts corresponding to different indexes can be determined, thereby determining a mapping relationship.

In conjunction with the embodiments of the first aspect, in some embodiments, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the above embodiment, a method of using a linear algorithm to determine a data amount series is illustrated. Based on this method, the data amounts corresponding to different indexes can be determined, thereby determining a mapping relationship.

In combination with the embodiments of the first aspect, in some embodiments, the mapping relationship is defined through a protocol.

In the above embodiment, the above mapping relationship may be defined through a protocol, so that the terminal may report the DSR according to the mapping relationship defined by the protocol.

In combination with the embodiments of the first aspect, in some embodiments, the mapping relationship is configured by the network device.

In the above embodiment, the terminal can report the DSR according to the mapping relationship configured by the network device, so as to flexibly configure the mapping relationship applicable to different terminals.

In combination with the embodiment of the first aspect, in some embodiments, when the mapping relationship is configured by the network device, the method further includes:

The terminal receives configuration information sent by the network device, and the configuration information includes at least one of the following:

The minimum value of the data volume _Bmin ;

The maximum value of the data volume B _max ;

First algorithm.

In the above embodiment, the terminal can generate a mapping relationship according to the configuration information sent by the network device, thereby improving the flexibility of obtaining the mapping relationship.

In combination with the embodiments of the first aspect, in some embodiments, the configuration information is sent via radio resource control RRC signaling or media access control control unit MAC CE.

In the above embodiment, the terminal may receive the configuration information sent by the network device through RRC signaling or MAC CE to obtain The mapping relationship or parameters related to the mapping relationship configured by the network device facilitate reporting of an appropriate DSR according to the configuration of the network device.

In combination with the embodiments of the first aspect, in some embodiments, the granularity of the configuration information is a logical channel group (Logical Channel Group, LCG).

In the above embodiment, the configuration information configured by the network device is based on LCG granularity, so that the terminal determines the corresponding data volume according to different LCGs.

In combination with the embodiments of the first aspect, in some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the mapping relationship.

In the above embodiment, the mapping relationship can be indicated by the relevant information field in the DSR, so that the network device can know whether there is data that needs to be scheduled in time based on the information in the second information field.

In combination with the embodiment of the first aspect, in some embodiments, the remaining time is determined according to a packet discard timer configured by the network device.

In the above embodiment, the terminal can determine the remaining time for the data packet to be discarded according to the packet discard timer, so as to initiate DSR reporting in time, which is convenient for timely scheduling of network devices.

In combination with the embodiments of the first aspect, in some embodiments, the threshold is configured by the network device.

In the above embodiment, the threshold may be used to instruct the terminal to report the DSR at an appropriate time.

In a second aspect, an embodiment of the present disclosure provides a method for receiving a DSR, the method comprising:

The network device receives a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, wherein the DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discarding is less than a threshold.

In the above embodiment, the network device receives the DSR sent by the terminal to accurately know the amount of data whose remaining time before packet discard is less than the threshold according to the DSR, so that the network device can schedule based on the amount of data. The terminal does not need to report too much data in the report, which can save the resources of the network device during scheduling.

In combination with the embodiments of the second aspect, in some embodiments, the DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum and maximum values, and the first algorithm.

In combination with the embodiments of the second aspect, in some embodiments, the number N is determined based on the number of bits used to indicate the amount of data in the DSR.

In combination with the embodiments of the second aspect, in some embodiments, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In conjunction with the embodiment of the second aspect, in some embodiments, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In conjunction with the embodiment of the second aspect, in some embodiments, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In combination with the embodiments of the second aspect, in some embodiments, the mapping relationship is defined through a protocol.

In combination with the embodiments of the second aspect, in some embodiments, the mapping relationship is configured by the network device.

In conjunction with the embodiment of the second aspect, in some embodiments, when the mapping relationship is configured by the network device, the method further includes:

The network device sends configuration information to the terminal, and the configuration information includes at least one of the following:

The minimum value of the data volume _Bmin ;

The maximum value of the data volume B _max ;

First algorithm.

In combination with the embodiments of the second aspect, in some embodiments, the configuration information is sent via RRC signaling or MAC CE.

In combination with the embodiments of the second aspect, in some embodiments, the granularity of the configuration information is LCG.

In combination with the embodiments of the second aspect, in some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the mapping relationship.

In combination with the embodiment of the second aspect, in some embodiments, the remaining time is determined according to a packet discard timer configured by the network device.

In combination with the embodiments of the second aspect, in some embodiments, the threshold is configured by the network device.

In a third aspect, an embodiment of the present disclosure provides a terminal, including:

The transceiver module is used to send a DSR to a network device. The DSR includes a mapping relationship between an index and a DSR data volume. The DSR data volume includes: a data volume corresponding to a data packet whose remaining time before packet discarding is less than a threshold.

In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes a mapping relationship between an index and a DSR data volume, and the DSR data volume includes: a data volume corresponding to a data packet whose remaining time from packet discard is less than a threshold.

The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun after the article may be understood as a singular expression or a plural expression.

In the embodiments of the present disclosure, “plurality” refers to two or more.

In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the recording method of "A or B" may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "time/frequency", "time/frequency domain", etc. refer to the time domain and/or the frequency domain.

In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

In some embodiments, in some embodiments, the terms "access network device (AN device), "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission and/or reception point (transmission/reception point, TRP)", "panel", "antenna panel (antenna panel)", "antenna array (antenna array)", "cell", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell)", "serving cell", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like can be used interchangeably.

In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.

In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.

In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

In some embodiments, data, information, etc. may be obtained with the user's consent.

In addition, each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.

FIG. 1 a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.

In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1a, or part of the subject, but are not limited thereto. The subjects shown in FIG. 1a are examples, and the communication system may include all or part of the subjects in FIG. 1a, or may include other subjects other than FIG. 1a, and the number and form of the subjects are arbitrary, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.

FIG. 1b is a schematic diagram of a protocol layer structure according to an embodiment of the present disclosure.

As shown in FIG. 1b , the communication between the network device 102 and the terminal 101 follows a certain protocol layer structure. The control plane protocol layer structure may include functions of the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the media access control (MAC) layer and the physical layer (PHY) layer. The user plane protocol layer structure may include functions of the PDCP layer, the RLC layer, the MAC layer and the physical layer.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access ... The present invention relates to wireless communication systems such as LTE, Wi-Fi (X), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them. In addition, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G, etc.) may also be applied.

In the disclosed embodiment, the network device 102 may configure a packet discard timer (discardTimer) for the PDCP entity. When the transmitting PDCP entity receives a PDCP service data unit (PDCP Service Data Unit, PDCP SDU) from a higher layer, the corresponding discardTimer will be started for the PDCP SDU. If the discardTimer of a PDCP SDU times out, the transmitting PDCP entity will discard (discard) the PDCP SDU and the corresponding PDCP data protocol data unit (PDCP Data Protocol Data Unit, PDCP Data PDU). If the corresponding PDCP Data PDU has been sent down to the RLC layer for processing, the PDCP will send a discard operation indication to the RLC layer.

In the disclosed embodiment, the MAC layer defines a mechanism for reporting the BSR, and the BSR contains information about the uplink data volume in the MAC entity. The data volume reported in the BSR is the sum of all data volumes in the LCG after the MAC PDU is generated, i.e., after the Logical Channel Priority (LCP) process is executed.

The amount of data in the DSR is different from the amount of data in the BSR. The amount of data reported in the DSR is the amount of data for which the remaining time before packet discarding is less than the threshold configured by the network. Therefore, the amount of data reported in the DSR is usually less than the amount of data reported in the BSR. In addition, even if the amount of data reported in the DSR is large, considering that the network has not been able to provide sufficient resources to schedule the terminal 101 to transmit this part of the data, the possibility that the network device 102 can schedule a large amount of data before the terminal 101 discards the packet is also very low. Therefore, reporting a large amount of data in the DSR is not very important. Large amounts of data do not provide much help for network scheduling.

Since the range of data volume reported by DSR and BSR is different, if the BSR reporting method (such as BSR table) is used to report the DSR data volume, it may not be accurate enough, resulting in resource waste during network scheduling.

FIG2a is an interactive schematic diagram of a method for sending and receiving a DSR according to an embodiment of the present disclosure. As shown in FIG2a, an embodiment of the present disclosure relates to a method for sending and receiving a DSR, and the method includes:

Step S2101, the network device 102 sends configuration information to the terminal 101.

In some embodiments, the configuration information may be used to configure a mapping relationship between an index and a DSR data volume, such as configuring a mapping table applicable to DSR data.

Optionally, the DSR data volume includes: the data volume corresponding to the data packets whose remaining time before packet discard is less than a threshold.

Optionally, the data packet may include a data packet of a PDCP layer, a data packet of a MAC layer, etc.

In some embodiments, the configuration information may be used to configure parameters related to generating a mapping relationship or a DSR data volume.

Optionally, the configuration information includes at least one of the following:

The minimum value of the data volume _Bmin ;

The maximum value of the data volume B _max ;

First algorithm.

Optionally, the data volume may range from a minimum value B _min to a maximum value B _max .

Optionally, the first algorithm may be an exponential algorithm or a linear algorithm.

In an example, the network device 102 may be configured with B _min , B _max and the first algorithm, and the terminal 101 generates the DSR data volume and the mapping relationship according to the configuration of the network device 102 .

In another example, the network device 102 may configure B _min and B _max and define the first algorithm through a protocol, and the terminal 101 generates the DSR data volume and the mapping relationship according to the configuration of the network device and the protocol definition.

In some embodiments, the configuration information is sent via RRC signaling or a Media Access Control Control Element (MAC CE).

Optionally, the network device 102 sends configuration information to the terminal 101 via RRC signaling. For example, the configuration can be performed in the MAC entity, that is, the configuration information is included in the IE MAC-CellGroupConfig.

Optionally, the granularity of the configuration information is LCG. For example, when configured in a MAC entity, the configuration information may include a mapping relationship of each LCG in the MAC entity, such as an index or DSR data volume corresponding to each LCG.

In some embodiments, terminal 101 receives the configuration information.

In some embodiments, step S2101 may be omitted.

Optionally, a mapping relationship is defined through a protocol, such as defining a mapping table applicable to DSR data, in which case step S2101 may be omitted.

Step S2102, terminal 101 sends DSR to network device 102.

In some embodiments, the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume (data volume) corresponding to the data packet whose remaining time before packet discard is less than a threshold.

Optionally, the remaining time is determined based on a packet discard timer configured by the network device 102 .

For example, the network device 102 may configure a corresponding packet discard timer for a data packet. When the timer times out (eg, the remaining time is 0), the corresponding data packet will be discarded.

Optionally, the threshold is configured by the network device 102 .

For example, the network device 102 may configure a threshold (remainingTimeThreshold) for the terminal 101 through RRC signaling, where the threshold is a threshold of the remaining time of UL data configured by LCG triggering DSR.

Optionally, the MAC entity triggers DSR when the remaining time of a PDU in the LCG is less than its associated remaining time threshold.

In some embodiments, the DSR is used to provide the network device 102 with a delay status of UL data. For example, the DSR includes: a remaining time corresponding to a data packet, and a data volume associated with the reported remaining time. The data volume may be indicated by an index. The remaining time is based on the value of a packet drop timer associated with the data volume at the first symbol of a PUSCH transmission used to send the DSR.

In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the data volume.

Optionally, taking the terminal 101 sending DSR via MAC CE as an example, the signaling of DSR MAC CE may refer to FIG2b. DSR MAC CE includes a first information field and a second information field, the first information field may be a remaining time information field (Delay Info), used to indicate the remaining time; the second information field may be a data volume (Data Volume) field, used to indicate the index corresponding to the DSR data volume.

Optionally, the length of the first information field may be 4 bits, and the length of the second information field may be 8 bits.

Optionally, the DSR MAC CE may further include an LCG _i field, which is used to indicate whether the DSR MAC CE contains remaining time information and data volume information corresponding to the logical channel group i. For example, when the value of the LCG _i field is 1, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are reported; when the value of the LCG _i field is 0, it indicates that the remaining time information and data volume information corresponding to the logical channel group i are not reported.

Optionally, the index or data volume reported in the second information field is determined according to a mapping relationship in an embodiment of the present disclosure.

In some embodiments, when the network device 102 determines the mapping relationship, or the protocol determines the mapping relationship, or the terminal 101 determines the mapping relationship according to the configuration of the network device 102 and/or the protocol definition, it can be determined based on a certain series generation algorithm.

In some embodiments, the DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum value and the maximum value, and the first algorithm.

Optionally, the first algorithm comprises an exponential algorithm or a linear algorithm.

Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

Wherein, N is used to indicate the maximum index value in the mapping relationship, and can also indicate the number of values of the data amount from B _min to B _max . Assuming the number of bits is x, N = 2 ^x -1. For example, if the number of bits used to indicate the data amount in DSR is 5 bits (bit), then N is 31; for another example, if the number of bits used to indicate the data amount in DSR is 8 bits, then N is 255.

In the mapping relationship, the index 0 may be used to indicate that the data volume is 0, and the maximum index value such as 31 or 255 may be used to indicate that the data volume>B _max .

Optionally, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

The amount of data reported in the DSR is the amount of data for which the remaining time before packet discard is less than a threshold configured by the network, so a data amount of 0 does not need to be indicated.

The first value may be a value configured by a network device or defined by a protocol. Referring to the example in Table 1, when a 5-bit indicates the amount of data, the first value may be configured or defined as 100.

Optionally, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

Optionally, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In an example, taking the number of bits used to indicate the amount of data in the DSR as 5 bits, using an exponential algorithm and B _min = 100 bytes, B _max = 100000 bytes, N = 31, the relationship between the index and the corresponding amount of data is shown in Table 1 below:

Table 1

In some embodiments, the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

In some embodiments, "obtain", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and/or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.

In some embodiments, terms such as "send", "transmit", "report", "send", "transmit", "bidirectional transmission", "send and/or receive" can be used interchangeably.

In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, “RAN-based”, etc. may be used interchangeably. Interchangeable.

In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

In some embodiments, terms such as "moment", "time point", "time", and "time position" can be interchangeable, and terms such as "duration", "period", "time window", "window", and "time" can be interchangeable.

In some embodiments, terms such as "component carrier (CC)", "cell", "frequency carrier", and "carrier frequency" can be used interchangeably.

In some embodiments, terms such as "certain", "preset", "preset", "set", "indicated", "some", "any", and "first" can be interchangeable, and "specific A", "preset A", "preset A", "set A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.

In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited to this.

In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.

The method involved in the embodiment of the present disclosure may include at least one of step S2101 to step S2102. For example, step S2102 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 2a.

FIG3a is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by a terminal 101, and includes:

Step S3101, obtain configuration information.

Optionally, optional implementations of step S3101 may refer to step S2101 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

Optionally, the terminal 101 may obtain configuration information from the network device 102 or other entities.

Step S3102, send DSR.

Optionally, optional implementations of step S3102 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

Optionally, the terminal 101 may send a DSR to the network device 102 or other entities.

The method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3102. For example, step S3102 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 3a.

FIG3b is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3b, an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by a terminal 101, and includes:

Step S3201, terminal 101 sends DSR to network device 102.

Optionally, optional implementations of step S3201 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the index reported in the DSR has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

Optionally, the remaining time is determined according to a packet discard timer configured in the network device.

Optionally, the threshold is configured for the network device.

In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

In some embodiments, the above mapping relationship may be defined by a protocol.

Optionally, the protocol defines a mapping relationship or generates a data quantity series in accordance with different first algorithms.

In some embodiments, the DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum value and the maximum value, and the first algorithm.

Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

Optionally, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In some embodiments, reference may be made to other optional implementations recorded before or after the specification corresponding to FIG. 3b.

FIG3c is a flow chart of a method for sending a DSR according to an embodiment of the present disclosure. As shown in FIG3c, an embodiment of the present disclosure relates to a method for sending a DSR, which is executed by a terminal 101, and includes:

Step S3301, terminal 101 receives configuration information sent by network device 102.

Optionally, optional implementations of step S3301 may refer to step S2101 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the configuration information may be used to configure a mapping relationship, such as a mapping table.

In some embodiments, the configuration information may be used to configure one or more parameters for generating a mapping relationship, such as the configuration information including at least one of the following:

The minimum value of the data volume _Bmin ;

The maximum value of the data volume B _max ;

First algorithm.

In an example, when the configuration information configures the above three items, the terminal 101 can determine N according to B _min and B _max , and generate a mapping relationship according to the configuration.

In another example, when B _min and B _max are configured in the configuration information, the first algorithm may be defined by a protocol, and the terminal 101 determines the mapping relationship according to the configuration and the protocol definition.

In some embodiments, the configuration information is sent via radio resource control RRC signaling or media access control element MAC CE.

Optionally, the granularity of the configuration information is a logical channel group LCG.

In some embodiments, the mapping relationship configured by the network device 102, or the mapping relationship determined by the terminal 101 according to the configuration and/or definition, can refer to the following method:

Optionally, the DSR data volume in the mapping relationship is generated according to a minimum data volume value B _min , a maximum data volume value B _max , a number N of data volumes between the minimum value and the maximum value, and a first algorithm.

Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

Optionally, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

Step S3302, terminal 101 sends DSR to network device 102.

Optionally, optional implementations of step S3302 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the index reported in the DSR has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

Optionally, the remaining time is determined according to a packet discard timer configured in the network device.

Optionally, the threshold is configured for the network device.

In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

In some embodiments, reference may be made to other optional implementations recorded before or after the specification corresponding to FIG. 3c.

FIG4a is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for receiving a DSR, which is performed by a network device 102, and includes:

Step S4101, sending configuration information.

Optionally, optional implementations of step S4101 may refer to step S2101 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

Optionally, the network device 102 may send configuration information to the terminal 101 or other entities.

Step S4102, obtain DSR.

Optionally, optional implementations of step S4102 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

Optionally, the network device 102 may obtain the DSR from the terminal 101 or other entities.

The method involved in the embodiment of the present disclosure may include at least one of step S4101 to step S4102. For example, step S4102 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 4a.

FIG4b is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4b, an embodiment of the present disclosure relates to a method for receiving a DSR, the method being performed by a network device 102, and the method comprising:

Step S4201, the network device 102 receives the DSR sent by the terminal 101.

Optionally, optional implementations of step S4201 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the index reported in the DSR has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

Optionally, the remaining time is determined according to a packet discard timer configured in the network device.

Optionally, the threshold is configured for the network device.

In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

In some embodiments, the above mapping relationship may be defined by a protocol.

Optionally, the protocol defines a mapping relationship or generates a data quantity series in accordance with different first algorithms.

In some embodiments, the DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum value and the maximum value, and the first algorithm.

Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

Optionally, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In some embodiments, reference may be made to other optional implementations recorded before or after the specification corresponding to FIG. 4b.

FIG4c is a flow chart of a method for receiving a DSR according to an embodiment of the present disclosure. As shown in FIG4c, an embodiment of the present disclosure relates to a method for receiving a DSR, the method being performed by a network device 102, and the method comprising:

Step S4301, the network device 102 sends configuration information to the terminal 101.

Optionally, optional implementations of step S4301 may refer to step S2101 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the configuration information may be used to configure a mapping relationship, such as a mapping table.

In some embodiments, the configuration information may be used to configure one or more parameters for generating a mapping relationship, such as the configuration information including at least one of the following:

The minimum value of the data volume _Bmin ;

The maximum value of the data volume B _max ;

First algorithm.

In an example, when the configuration information configures the above three items, the terminal 101 can determine N according to B _min and B _max , and generate a mapping relationship according to the configuration.

In another example, when B _min and B _max are configured in the configuration information, the first algorithm may be defined by a protocol, and the terminal 101 determines the mapping relationship according to the configuration and the protocol definition.

In some embodiments, the configuration information is transmitted via radio resource control RRC signaling or medium access control control element MAC CE send.

Optionally, the granularity of the configuration information is a logical channel group LCG.

In some embodiments, the mapping relationship configured by the network device 102, or the mapping relationship determined by the terminal 101 according to the configuration and/or definition, can refer to the following method:

Optionally, the DSR data volume in the mapping relationship is generated according to a minimum data volume value B _min , a maximum data volume value B _max , a number N of data volumes between the minimum value and the maximum value, and a first algorithm.

Optionally, the number N is determined according to the number of bits used to indicate the amount of data in the DSR.

Optionally, the minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value.

In the first example, the first algorithm is an exponential algorithm, and the DSR data volume is generated according to the following method:

Where p = (B _max /B _min ) ^1/(N-1) -1, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

In the second example, the first algorithm is a linear algorithm, and the DSR data volume is generated according to the following method:

in, B _k represents the amount of data corresponding to index k, Indicates a round-up operation.

Step S4302, the network device 102 receives the DSR sent by the terminal 101.

Optionally, optional implementations of step S4302 may refer to step S2102 in FIG. 2a and other related parts of the embodiment involved in FIG. 2a , which will not be described in detail here.

In some embodiments, the index reported in the DSR has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold.

Optionally, the remaining time is determined according to a packet discard timer configured in the network device.

Optionally, the threshold is configured for the network device.

In some embodiments, the DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume.

In some embodiments, reference may be made to other optional implementations recorded before or after the specification corresponding to FIG. 4c.

In the method of the embodiment of the present disclosure, the amount of data reported in the DSR is the amount of data for which the remaining time before the packet is discarded is less than the threshold configured by the network. The range of the amount of data (such as B _min and B _max , especially B _max ) is different from the range of the amount of data reported in the BSR. First, the amount of data reported in the BSR is the sum of all the amounts of data in the LCG after the LCP process is executed, while the amount of data reported in the DSR is the amount of data for which the remaining time before the packet is discarded is less than the threshold configured by the network. Therefore, the amount of data reported in the DSR is usually less than the amount of data reported in the BSR. Second, the amount of data reported in the DSR is the amount of data for which the remaining time before the packet is discarded is less than the threshold configured by the network. Even if the amount of data is large, considering that the network has not been able to provide sufficient resources to schedule the UE to transmit data before, the possibility that the network can schedule a large amount of data before the UE discards the packet is also very low. Therefore, reporting a large amount of data in the DSR will not be of much help to network scheduling. Therefore, due to the different ranges of the amount of data reported by the DSR and the BSR, using the BSR table to report the amount of data in the DSR is not accurate enough, resulting in a waste of resources during network scheduling.

The method of the disclosed embodiment proposes that when reporting the amount of data in the DSR, the mapping between the reported index and the corresponding amount of data is optimized for the DSR, and the BSR cache state (Buffer Size) mapping table (including the BSR table before Rel-18 and the BSR table to be introduced in Rel-18) is not used. The mapping table optimized for the amount of data reported by the DSR will improve the network scheduling efficiency and thus improve the network capacity.

To facilitate understanding of the embodiments of the present disclosure, some examples are listed below:

Example 1:

The relationship between the index reported by the DSR and the corresponding data volume can be a table defined in the protocol, or the relationship between the index and the corresponding data volume can be configured through the network.

Optionally, the relationship between the index and the corresponding data volume corresponds to the mapping relationship in the aforementioned embodiment.

Example 2:

Whether it is defined by the protocol or configured through the network, the relationship between the index and the corresponding data volume is usually generated by a specific algorithm. The required parameters may include:

The algorithm for generating the sequence of data corresponding to the index: for example, a linear formula or an exponential formula;

B _min : minimum value of data volume;

B _max : the maximum value of data volume;

N: The number of values of the data amount from B _min to B _max .

Optionally, the value of N depends on how many bits are used in the DSR to indicate the amount of data. In the existing BSR table of NR, index 0 is used to indicate that the amount of data is 0, and the maximum index value (the maximum index value corresponding to the 5-bit Buffer Status is 31, and the 8-bit The maximum index value corresponding to Buffer Status is 255) to indicate that the data volume > B _max .

Optionally, the data volume indication reported in the DSR can be similar to that of the BSR, and some optimizations can also be made. For example, the data volume reported in the DSR is the data volume for which the remaining time before packet discarding is less than the threshold configured by the network, so the data volume 0 does not need to be indicated. Thus, for the x bit index value, the number of data volume values from B _min to B _max is N = 2 ^x -1. For example, for 5-bit and 8-bit index values, N is 31 and 255 respectively.

When the sequence generation algorithm is exponential, the DSR data volume is generated using the following formula:

with

When the sequence generation algorithm is linear, the DSR data volume is generated using the following formula:

with

Taking a 5-bit index value as an example, when an exponential method is used, B _min =100 Bytes, B _max =100000 Bytes, and N=31, the relationship between the index and the corresponding data amount is shown in Table 1.

Example 3:

The relationship between the index and the corresponding data volume is configured through the network, which can be configured through RRC signaling or MAC CE. When configured by RRC signaling, it can be configured in the MAC entity (that is, configured in IE MAC-CellGroupConfig) or with LCG as the granularity.

Example 4:

The network may configure one or more parameters generated by an algorithm that determines the relationship between the index and the corresponding amount of data.

For example, the network can configure the algorithm (linear or exponential) for generating the data series corresponding to the index, B _min , B _max , etc., and let the rest of the parameters be specified by the standard. For example, the standard can specify that the generation algorithm is an exponential algorithm, and for 5-bit and 8-bit index values, N is 31 and 255 respectively, and B _min and B _max are configured through signaling.

Example 5:

Referring to Figure 2b, in the DSR MAC CE format, the length of the remaining time information (Delay Info field) and the corresponding data volume (Data Volume field) are 4 bits and 8 bits respectively.

Optionally, the LCG _i field indicates whether there is remaining time information and data volume information corresponding to logical channel group i in the DSR MAC CE. When the value of the LCG _i field is 1, it indicates that the remaining time information and data volume information corresponding to logical channel group i are reported, and when the value of the LCG _i field is 0, it indicates that the remaining time information and data volume information corresponding to logical channel group i are not reported.

Optionally, data volume information (Data Volume field) is reported according to the relationship between the index in this patent and the corresponding data volume.

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in the form of hardware circuits.

In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the hardware circuit is fixed or reconfigurable, for example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

FIG5a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG5a, the terminal 5100 may include: at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module 5101 is used to send a DSR to a network device, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, wherein the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before the packet is discarded is less than a threshold.

Optionally, the transceiver module 5101 is used to execute at least one of the communication steps such as sending and/or receiving executed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to execute at least one of the other steps executed by the terminal 101 in any of the above methods, which will not be described in detail here.

FIG5b is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in FIG5b, the network device 5200 may include: at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to receive a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, wherein the DSR data volume includes: the data volume corresponding to the data packet whose remaining time from packet discard is less than a threshold.

Optionally, the transceiver module 5201 is used to execute at least one of the communication steps such as sending and/or receiving executed by the network device 102 in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to execute at least one of the other steps executed by the network device 102 in any of the above methods, which will not be described in detail here.

In some embodiments, the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

In some embodiments, the processing module can be a module or include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be replaced with the processor.

FIG6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. The communication device 6100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. The communication device 6100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG6a, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute the program, and process the data of the program. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to call instructions so that the communication device 6100 executes any of the above methods.

In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and/or receiving in the above method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separated or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may also be outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102, and the interface circuit 6104 may be used to receive data from the memory 6102 or other devices, and may be used to send data to the memory 6102 or other devices. For example, the interface circuit 6104 may read the data stored in the memory 6102 and send the data to the processor 6101.

The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, and optionally, the above IC collection may also include a Storage components for storing data and programs; (3) ASIC, such as modems; (4) modules that can be embedded in other devices; (5) receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.; (6) others, etc.

Fig. 6b is a schematic diagram of the structure of a chip 6200 provided in an embodiment of the present disclosure. In the case where the communication device 6100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 6200 shown in Fig. 6b, but the present invention is not limited thereto.

The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

In some embodiments, the chip 6200 further includes one or more interface circuits 6202. Optionally, the terms such as interface circuit, interface, transceiver pin, etc. can be interchangeable. In some embodiments, the chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memory 6203 can be outside the chip 6200. Optionally, the interface circuit 6202 is connected to the memory 6203, and the interface circuit 6202 can be used to receive data from the memory 6203 or other devices, and the interface circuit 6202 can be used to send data to the memory 6203 or other devices. For example, the interface circuit 6202 can read the data stored in the memory 6203 and send the data to the processor 6201.

In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and/or receiving in the above method. The interface circuit 6202 performs the communication steps such as sending and/or receiving in the above method, for example, means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203 or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

The modules and/or devices described in the embodiments such as virtual devices, physical devices, chips, etc. can be combined or separated as needed. Optionally, some or all steps can also be performed by multiple modules and/or devices in collaboration, which is not limited here.

The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

The present disclosure also proposes a program product, which, when executed by the communication device 6100, enables the communication device 6100 to execute any of the above methods. Optionally, the program product is a computer program product.

The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

Industrial Applicability

In the method disclosed in the present invention, the terminal accurately reports the DSR data volume corresponding to different indexes by sending DSR to the network device, so that the network device can accurately know the data volume whose remaining time before packet discard is less than the threshold according to DSR, so that the network device can schedule based on this data volume. In this report, the terminal does not need to report too much data volume, which can save the resources of the network device during scheduling.

Claims (26)

A method for sending a delay status report DSR, the method comprising: The terminal sends a DSR to the network device, wherein the DSR includes an index, wherein the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: a data volume corresponding to a data packet whose remaining time from packet discard is less than a threshold. The method according to claim 1, wherein The DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum and maximum values, and a first algorithm; wherein the number N is determined according to the number of bits used to indicate the data volume in the DSR. The method according to claim 2, wherein The minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value. The method according to claim 2, wherein The first algorithm is an exponential algorithm or a linear algorithm, and the DSR data volume is generated according to the following method: Wherein, p = (B _max /B _min ) ^1/(N-1) -1; or, in, Among them, B _k represents the amount of data corresponding to index k, Indicates a round-up operation. The method according to any one of claims 1 to 4, wherein: The mapping relationship is defined by a protocol; or, The mapping relationship is configured by the network device. The method according to claim 5, wherein, when the mapping relationship is configured by the network device, the method further comprises: The terminal receives configuration information sent by the network device, where the configuration information includes at least one of the following: The minimum value of the data volume _Bmin ; The maximum value of the data volume B _max ; First algorithm. The method according to claim 6, wherein The configuration information is sent via radio resource control RRC signaling or media access control control element MAC CE. The method according to claim 6, wherein The granularity of the configuration information is a logical channel group LCG. The method according to any one of claims 1 to 8, wherein: The DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume; wherein the remaining time is determined according to the packet discard timer configured by the network device. The method according to any one of claims 1 to 8, wherein: The threshold is configured for the network device. A method for receiving a DSR, the method comprising: The network device receives a DSR sent by a terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold. The method of claim 11, wherein: The DSR data volume in the mapping relationship is generated according to the minimum data volume B _min , the maximum data volume B _max , the number N of data volumes between the minimum and maximum values, and a first algorithm; wherein the number N is determined according to the number of bits used to indicate the data volume in the DSR. The method of claim 12, wherein: The minimum value B _min is greater than 0, or the minimum value B _min is less than or equal to the first value. The method of claim 12, wherein: The first algorithm is an exponential algorithm or a linear algorithm, and the DSR data volume is generated according to the following method: Wherein, p = (B _max /B _min ) ^1/(N-1) -1; or, in, Among them, B _k represents the amount of data corresponding to index k, Indicates a round-up operation. The method according to any one of claims 11 to 14, wherein The mapping relationship is defined by a protocol; or, The mapping relationship is configured by the network device. The method of claim 15, wherein when the mapping relationship is configured by the network device, the method further comprises: The network device sends configuration information to the terminal, where the configuration information includes at least one of the following: The minimum value of the data volume _Bmin ; The maximum value of the data volume B _max ; First algorithm. The method of claim 16, wherein: The configuration information is sent via RRC signaling or MAC CE. The method of claim 16, wherein: The granularity of the configuration information is LCG. The method according to any one of claims 11 to 18, wherein The DSR includes a first information field and a second information field, the first information field is used to indicate the remaining time, and the second information field is used to indicate the index corresponding to the DSR data volume; wherein the remaining time is determined according to the packet discard timer configured by the network device. The method according to any one of claims 11 to 18, wherein The threshold is configured for the network device. A terminal, comprising: The transceiver module is used to send a DSR to a network device. The DSR includes an index. The index has a mapping relationship with the DSR data volume. The DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discard is less than a threshold. A network device, comprising: The transceiver module is used to receive the DSR sent by the terminal, wherein the DSR includes an index, and the index has a mapping relationship with the DSR data volume, and the DSR data volume includes: the data volume corresponding to the data packet whose remaining time before packet discarding is less than a threshold. A terminal, comprising: Memory; one or more processors; and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 10 when executing the computer program. A network device, comprising: Memory; one or more processors; and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 11 to 20 when executing the computer program. A communication system includes a terminal and a network device, wherein: The terminal is configured to implement the method according to any one of claims 1 to 10; The network device is configured to implement the method according to any one of claims 11-20. A storage medium stores instructions, wherein: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 10 or any one of claims 11 to 20.